The Doctor's program malfunctioned because he overloaded his matrix with too many subroutines from historical figures, and he turned into an evil Hyde-like personality. He attacked Nakahn by dragging his hands into a fire. He then ordered Nakahn to get him a ship and safe passage off the planet. The Doctor also attacked Zahir, and Nakahn was suspected of the crime.

When the evil Doctor abducted Kes and transported to the outpost, Nakahn told the evil Doctor that Voyager had cordoned off the area to prevent any ship from leaving. (VOY: "Darkling")